Ender 3 Ball Bearing Filament Guides

Note: If you prefer the larger 608 bearings (8x22x7), I also did a 608 version of the lower guide, and the 608 guide is recommended over this one if you have a 608 bearing to use: https://www.thingiverse.com/thing:3085154

These upper and lower filament guides use MR105 5x10x4 Ball Bearings to help the filament feed more smoothly in a curved path that doesn't stress the filament or place excess drag on the filament feed drive.

Required hardware for Upper Guide:
(2) MR105 Ball Bearings
(